Wind power generation system and wind power generation tower

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind power generation system and a wind power generation tower. The wind power generation system comprises a wind power generator for generating power by utilizing wind energy and a wind collecting part which is arranged around the wind power generator and is used for providing wind power for the work of the wind power generator; a cylinder is defined by the wind collecting part, and the wind driven generator is arranged in the cylinder. The air collecting part comprises a plurality of air collecting channels; one side, close to the wind driven generator, of the air collecting duct is narrower than one side, far away from the wind driven generator, of the air collecting duct; a one-way wind shield only allowing wind to flow from one side of the wind collecting channel to one side of the wind driven generator is arranged at the outlet end of the wind collecting channel. And due to the use of the one-way wind shield, the influence of resistance on the generator when wind flows out of other wind collecting channels is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a wind power generation system and a wind power generation tower. Background Technology

[0002] A wind power generation system is a system that converts wind energy into electrical energy. The wind power generation system involved in the wind power tower in patent CN105452649A uses the Venturi principle to concentrate and accelerate the wind, thereby enhancing the wind power. The blades use the Bernoulli principle to generate force and torque. However, the force and torque generated by the Bernoulli principle are less than those generated by the radial arrangement of the blades. The wind blows the blades almost vertically. At the same time, after the wind enters the energy conversion section from the wind collection section, some of the wind flows out from the wind collection section on the opposite side. This outflow creates resistance to the generator, affecting the power generation effect. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a wind power generation system, including a wind turbine generator that generates electricity using wind energy and a wind collection section disposed around the wind turbine generator to provide wind power for the operation of the wind turbine generator; the wind collection section is formed into a cylindrical tube, and the wind turbine generator is disposed inside the cylindrical tube; the wind collection section includes a plurality of wind collection ducts; the wind collection ducts on the side closer to the wind turbine generator are narrower than the wind collection ducts on the side farther away from the wind turbine generator;

[0004] The outlet end of the air collection duct is equipped with a one-way windbreak that only allows wind to flow from one side of the air collection duct to the side of the wind turbine.

[0005] Based on the above scheme, the upper and / or lower ends of the cylindrical tube are open.

[0006] Based on the above scheme, the one-way windshield includes a windshield support shaft disposed between the top and bottom walls of the air collection duct and a one-way windshield plate rotatably connected to the windshield support shaft.

[0007] Based on the above scheme, the blades of the wind turbine include wind-receiving blades and fixing arms for fixing the wind-receiving blades to the wind turbine, and a gap is formed between the wind-receiving blades and the main body of the wind turbine for wind to pass through.

[0008] Based on the above scheme, the extension surface of the wind-receiving blade passes through the central axis of the main body of the wind turbine.

[0009] Based on the above scheme, the top wall of the air collection duct slopes upward on the side closer to the wind turbine.

[0010] Based on the above scheme, the bottom wall of the air collection duct slopes upward on the side closer to the wind turbine.

[0011] Based on the above scheme, a support structure for supporting the wind turbine and the wind collection unit is also included.

[0012] Based on the above scheme, the wind-receiving blade is rectangular in shape.

[0013] Beneficial effects of the utility model:

[0014] This utility model's wind power generation system effectively avoids the resistance caused by wind flowing out from other wind collection ducts by installing a one-way windbreak at the outlet end of the wind collection duct, which only allows wind to flow from one side of the wind collection duct to the side of the wind turbine. The top and bottom walls of the wind collection duct slope upwards on the side closer to the wind turbine, which can better utilize the principle of air intake above the chimney (Bernoulli's equation) for exhaust. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air collection unit in the system of this utility model (top view).

[0016] Figure 2 This is a schematic diagram of the system structure of this utility model (top view).

[0017] Figure 3 This is a schematic diagram of the structure of the system of this utility model (stereoscopic view);

[0018] Figure 4 This is a schematic diagram of the air collection duct in the system of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the one-way windshield in the system of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the wind turbine generator in the system of this utility model;

[0021] Figure 7 This is a schematic diagram of the blade structure in the system of this utility model;

[0022] Figure 8 This is a schematic diagram of the air collection unit in the system of this utility model.

[0023] Figure 9 This is a schematic diagram of the structure of the system of this utility model (including the support part);

[0024] Figure 10 This is a three-dimensional structural diagram of the power generation tower in Embodiment 2 of this utility model;

[0025] Figure 11 This is a schematic diagram of the power generation tower from the main view in Embodiment 2 of this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments described below are intended to facilitate the understanding of the present invention and do not limit it in any way.

[0027] Example 1

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a wind power generation system, including a wind turbine 1 that generates electricity using wind energy and a wind collection section disposed around the wind turbine 1 to provide wind power for its operation; the wind collection section forms a cylindrical tube 4, and the wind turbine 1 is disposed inside the cylindrical tube 4; the wind collection section includes a plurality of wind collection ducts 2; the wind collection ducts 2 on the side closer to the wind turbine 1 are narrower than the wind collection ducts on the side farther from the wind turbine 1; to prevent the wind entering the cylindrical tube 4 from flowing out from the other wind collection ducts 2, such as Figure 4 As shown, the outlet end 2-1 of the air collection duct 2 is provided with a one-way windshield 3 that only allows wind to flow from one side of the air collection duct 2 to the side of the wind turbine generator 1.

[0029] Specifically, the upper and / or lower ends of the cylindrical tube 4 are open, and the most preferred embodiment is that both the upper and lower ends of the cylindrical tube 4 are open.

[0030] In operation, the wind enters from the air collection duct 2 and is accelerated by the air collection duct 2; the wind accelerated by the air collection duct 2 drives the wind turbine generator 1 to work; finally, the wind flows out from the upper air outlet 4-1 and / or the lower air outlet 4-2 of the cylindrical tube 4, thereby effectively avoiding the influence of the wind flowing out from other air collection ducts 2 on the generator's resistance.

[0031] As a specific implementation plan, such as Figure 4 and Figure 5 As shown, the one-way windshield 3 includes a windshield support shaft 3-1 disposed between the top wall 2-1 and the bottom wall 2-2 of the air collection channel 2, and a one-way windshield plate 3-2 rotatably connected to the windshield support shaft 3-1.

[0032] by Figure 2 For example, when wind enters from the wind collection channels 2 marked A, B, and C, the one-way wind deflectors 3 of the wind collection channels 2 marked A, B, and C open under the action of the wind. The wind, accelerated by the wind collection channels 2, drives the wind turbine 1 to work. Meanwhile, the one-way wind deflectors 3 of the wind collection channels 2 marked D, E, F, and G are closed under the action of the wind. Finally, the wind flows out from the upper air outlet 4-1 and / or the lower air outlet 4-2 of the cylindrical tube 4.

[0033] As a specific implementation plan, such as Figure 6 and Figure 7As shown, the blade 1-1 of the wind turbine 1 includes a wind-receiving blade 1-11 and a fixing arm 1-12 for fixing the wind-receiving blade 1-11 to the wind turbine 1. A gap 1-3 for wind to pass through is formed between the wind-receiving blade 1-11 and the main body 1-2 of the wind turbine 1. This design allows wind to enter the cylindrical tube 4 obliquely from the air collection duct 2 and act directly on the wind-receiving blade 1-11 away from the main body 1-2 of the wind turbine 1, resulting in a larger torque and a greater force of wind perpendicular to the wind-receiving blade 1-11. The wind then moves upward and / or downward from the gap 1-3 and finally flows out from the upper air outlet 4-1 and / or lower air outlet 4-2 of the cylindrical tube 4.

[0034] As a preferred implementation scheme, such as Figure 6 As shown, the extension surface of the wind-receiving blade 1-11 passes through the central axis of the main body 1-2 of the wind turbine generator 1. Figure 6 (As shown by the dotted line in the diagram). The extended surface refers to the virtual surface formed by the extension of the wind-receiving blade 1-11 towards one side of the main body 1-2; it does not actually exist. Furthermore, as... Figure 7 As shown, the wind-receiving blades 1-11 are generally rectangular.

[0035] To facilitate the exhaust of wind power generation systems, such as Figure 8 As shown, the top wall 2-1 and bottom wall 2-2 of the air collection duct 2 slope upwards on the side closer to the wind turbine 1. This allows for better utilization of the principle of air intake from above the chimney (Bernoulli's equation) for exhaust. Figure 8 In the diagram, the arrow indicates the direction of wind entry, pointing towards wind turbine 1, and the dashed line represents the horizontal line.

[0036] like Figure 9 As shown, the wind power generation system also includes a support part 5 for supporting the wind turbine 1 and the wind collection unit. In this way, during actual installation, the overall height of the wind power generation system can be adjusted according to actual needs. At the same time, the use of the support part 5 can keep the lower air outlet 4-2 of the cylindrical tube 4 unobstructed.

[0037] Example 2

[0038] Based on the wind power generation system in Example 1, such as Figure 10 As shown, this application provides a wind power tower, which includes several wind power generation systems stacked vertically.

[0039] As a specific implementation plan, such as Figure 11 As shown, a support part 5 is provided at the bottom of the wind power tower.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A wind power generation system, comprising a wind turbine (1) for generating electricity using wind energy and a wind collection section disposed around the wind turbine (1) to provide wind power for the operation of the wind turbine (1); the wind collection section is enclosed in a cylindrical tube (4), and the wind turbine (1) is disposed inside the cylindrical tube (4); the wind collection section includes a plurality of wind collection ducts (2); the wind collection ducts (2) on the side closer to the wind turbine (1) are narrower than the wind collection ducts on the side farther from the wind turbine (1); Its features are, The outlet end (2-1) of the air collection duct (2) is provided with a one-way windshield (3) that only allows wind to flow from one side of the air collection duct (2) to the side of the wind turbine (1).

2. The wind power generation system according to claim 1, characterized in that, The upper and / or lower ends of the cylindrical tube (4) are open.

3. The wind power generation system according to claim 1, characterized in that, The one-way windshield (3) includes a windshield support shaft (3-1) disposed between the top wall (2-1) and the bottom wall (2-2) of the air collection channel (2) and a one-way windshield plate (3-2) rotatably connected to the windshield support shaft (3-1).

4. The wind power generation system according to claim 1, characterized in that, The blade (1-1) of the wind turbine (1) includes a wind-receiving blade (1-11) and a fixing arm (1-12) for fixing the wind-receiving blade (1-11) to the wind turbine (1). A gap (1-3) for wind to pass through is formed between the wind-receiving blade (1-11) and the main body (1-2) of the wind turbine (1).

5. The wind power generation system according to claim 4, characterized in that, The extended surface of the wind-receiving blade (1-11) passes through the central axis of the main body (1-2) of the wind turbine (1).

6. The wind power generation system according to claim 1, characterized in that, The top wall (2-1) of the air collection duct (2) slopes upward on the side closest to the wind turbine (1).

7. The wind power generation system according to claim 1, characterized in that, The bottom wall (2-2) of the air collection duct (2) slopes upward on the side closest to the wind turbine (1).

8. The wind power generation system according to claim 5, characterized in that, The wind-receiving blades (1-11) are rectangular in shape.

9. The wind power generation system according to claim 1, characterized in that, It also includes a support (5) for supporting the wind turbine (1) and the wind collection unit.

10. A wind power generation tower, characterized in that, It comprises several wind power generation systems as described in any one of claims 1-8, stacked vertically.

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